The Difference Scattering dRCS from a Dielectric Target above a Rough Surface

2006 ◽  
Author(s):  
Y.-Q. Jin ◽  
H. Ye
Keyword(s):  
Rough Surface ◽  
Dielectric Target ◽  
The Difference

Hybrid method of scattering from a dielectric target above a rough surface: TM case

2013 ◽  
Vol 52 (36) ◽  
pp. 8759
Author(s):  
L. Li ◽  
T. L. Dong ◽  
Q. X. Li
Keyword(s):  
Rough Surface ◽  
Hybrid Method ◽  
Dielectric Target

scholarly journals The Effect of Row Structure on Soil Moisture Retrieval Accuracy from Passive Microwave Data

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Zheng Xingming ◽  
Zhao Kai ◽  
Li Yangyang ◽  
Ren Jianhua ◽  
Ding Yanling
Keyword(s):  
Soil Moisture ◽  
Rough Surface ◽  
Discrete Model ◽  
Soil Surface ◽  
Microwave Brightness Temperature ◽  
Retrieval Accuracy ◽  
Inversion Model ◽  
Vegetation Parameters ◽  
The Difference ◽  
Better Than

Row structure causes the anisotropy of microwave brightness temperature (TB) of soil surface, and it also can affect soil moisture retrieval accuracy when its influence is ignored in the inversion model. To study the effect of typical row structure on the retrieved soil moisture and evaluate if there is a need to introduce this effect into the inversion model, two ground-based experiments were carried out in 2011. Based on the observed C-band TB, field soil and vegetation parameters, row structure rough surface assumption (Qpmodel and discrete model), including the effect of row structure, and flat rough surface assumption (Qpmodel), ignoring the effect of row structure, are used to model microwave TB of soil surface. Then, soil moisture can be retrieved, respectively, by minimizing the difference of the measured and modeled TB. The results show that soil moisture retrieval accuracy based on the row structure rough surface assumption is approximately 0.02 cm3/cm3better than the flat rough surface assumption for vegetated soil, as well as 0.015 cm3/cm3better for bare and wet soil. This result indicates that the effect of row structure cannot be ignored for accurately retrieving soil moisture of farmland surface when C-band is used.

Effect of surface roughening on liquid-solid interface velocity

1989 ◽  
Vol 4 (3) ◽  
pp. 607-611 ◽  
Author(s):  
Peter M. Richards
Keyword(s):  
Rough Surface ◽  
Interface Velocity ◽  
Experimental Results ◽  
Density Difference ◽  
Surface Roughening ◽  
Velocity Versus ◽  
Temperature Relation ◽  
Partial Explanation ◽  
The Difference ◽  
Effect Of Surface

The difference in density between liquid and solid is shown to be altered at the interface of a rough surface. Since it has been argued previously by the author that density difference plays a major role in interface velocity, I conclude that the rough (100) surface of silicon can have both a larger slope and less asymmetry in the freezing-melting velocity versus temperature relation than does the smooth (111) surface. This may provide partial explanation for some recent experimental results and apparent controversy.

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